Welcome to White Space, where safety from one's mind is guaranteed.
This is my Omori Interloper AU! When Basil suddenly falls into a coma, Sunny and the others believe that he might be stuck in Headspace. So, for the first time in four years, the group travels to Sunny's Headspace to try and save Basil... but things have changed since the last time they were there :)
By the way! In this AU, Sunny is a Dreamer, meaning he's able to invite people into his Headspace. He and his friends used to go there often on fun adventures before Mari's passing.
Definitely plan on doing more with this AU, hope you enjoy ^^